/*
 * This file is part of Applied Energistics 2. Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved. Applied
 * Energistics 2 is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General
 * Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
 * later version. Applied Energistics 2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
 * Public License for more details. You should have received a copy of the GNU Lesser General Public License along with
 * Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.me.storage;

import javax.annotation.Nonnull;

import net.minecraft.item.ItemStack;

import appeng.api.AEApi;
import appeng.api.config.AccessRestriction;
import appeng.api.config.Actionable;
import appeng.api.networking.security.BaseActionSource;
import appeng.api.storage.IMEInventoryHandler;
import appeng.api.storage.StorageChannel;
import appeng.api.storage.data.IAEItemStack;
import appeng.api.storage.data.IItemList;
import appeng.items.contents.CellConfig;
import appeng.util.item.AEItemStack;

public class CreativeCellInventory implements IMEInventoryHandler<IAEItemStack> {

    private final IItemList<IAEItemStack> itemListCache = AEApi.instance().storage().createItemList();

    protected CreativeCellInventory(final ItemStack o) {
        final CellConfig cc = new CellConfig(o);
        for (final ItemStack is : cc) {
            if (is != null) {
                final IAEItemStack i = AEItemStack.create(is);
                i.setStackSize(Integer.MAX_VALUE);
                this.itemListCache.add(i);
            }
        }
    }

    public static IMEInventoryHandler getCell(final ItemStack o) {
        return new CellInventoryHandler(new CreativeCellInventory(o));
    }

    @Override
    public IAEItemStack injectItems(final IAEItemStack input, final Actionable mode, final BaseActionSource src) {
        final IAEItemStack local = this.itemListCache.findPrecise(input);
        if (local == null) {
            return input;
        }

        return null;
    }

    @Override
    public IAEItemStack extractItems(final IAEItemStack request, final Actionable mode, final BaseActionSource src) {
        final IAEItemStack local = this.itemListCache.findPrecise(request);
        if (local == null) {
            return null;
        }

        return request.copy();
    }

    @Override
    public IItemList<IAEItemStack> getAvailableItems(final IItemList out) {
        for (final IAEItemStack ais : this.itemListCache) {
            out.add(ais);
        }
        return out;
    }

    @Override
    public IAEItemStack getAvailableItem(@Nonnull IAEItemStack request) {
        final IAEItemStack local = this.itemListCache.findPrecise(request);
        if (local == null) {
            return null;
        }

        return request.copy();
    }

    @Override
    public StorageChannel getChannel() {
        return StorageChannel.ITEMS;
    }

    @Override
    public AccessRestriction getAccess() {
        return AccessRestriction.READ_WRITE;
    }

    @Override
    public boolean isPrioritized(final IAEItemStack input) {
        return this.itemListCache.findPrecise(input) != null;
    }

    @Override
    public boolean canAccept(final IAEItemStack input) {
        return this.itemListCache.findPrecise(input) != null;
    }

    @Override
    public int getPriority() {
        return 0;
    }

    @Override
    public int getSlot() {
        return 0;
    }

    @Override
    public boolean validForPass(final int i) {
        return true;
    }
}
